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Finding the Fourth Proportional to 88,712.80, 133,081.35 and 29,542.30

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Solution

The fourth proportional to 88,712.80, 133,081.35 and 29,542.30 is: 44,317.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,712.80 : 133,081.35 = 29,542.30 : x
  2. Step 2: Convert to fraction form
    88,712.80/133,081.35 = 29,542.30/x
  3. Step 3: Cross multiply
    88,712.80x = 133,081.35 × 29,542.30
  4. Step 4: Simplify right side
    88,712.80x = 3,931,529,166.11
  5. Step 5: Solve for x
    x = 3,931,529,166.11/88,712.80
  6. Step 6: Final answer
    x = 44,317.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.